The following is taken from New York in the War of the Rebellion,
3rd ed. Frederick Phisterer. Albany: J. B. Lyon Company, 1912.
This regiment, Col. William C. Brown, was accepted
by the State May 25, 1861; organized at Elmira, and there mustered in the
service of the United States
for two years June 11, 1861. May 18, 1863, the three years' men of the
regiment were transferred to the 80th Infantry.
The companies were recruited
principally: A and E at Watertown; B — Jefferson
Grays — at Copenhagen; C at Theresa; D at New York city, Buffalo and
Elmira; F at Corning and Hammondsport; G at Adams; H at Cazenovia; I at Redwood,
and K at Brownville.
The regiment left the State July 9, 1861; served at and near
Washington, D. C., from July 13, 1861; in A. Porter's Brigade, Army of Northeastern
Virginia,
from July 27, 1861; in Hunter's Brigade, Division of Potomac, from August
4,
1861; in Wadsworth's Brigade, McDowell's Division, Army of the Potomac, from
October 15, 1861; in 2d, Patrick's, Brigade, 3d, King's, Division, 1st Corps,
Army of the Potomac, from March 13, 1862; in 2d Brigade, Kings Division,
Department of Rappahannock, from May, 1862; in 3d Brigade, 1st Division, 3d
Corps, Army
of Virginia, from June 26, 1862; in same brigade and division, 1st Corps,
Army of the Potomac, from September 12, 1862; in the Provost Guard Brigade,
Army
of the Potomac, from January, 1863; at Aquia Creek, Va., from April, 1863;
and was honorably discharged and mustered out, under Col. John G. Todd, June
5, 1863, at Elmira.
During its service the regiment lost by death, killed
in action, 1 officer, 25 enlisted men; of wounds received in action, 18 enlisted
men; of disease and other causes, 56 enlisted men; total, 1 officer, 99 enlisted
men; aggregate, 100; of whom 5 enlisted men died in the hands of the enemy.

The following is taken from The Union army: a history of military
affairs in the loyal states, 1861-65 -- records of the regiments in the
Union army -- cyclopedia of battles -- memoirs of commanders and soldiers.
Madison, WI: Federal Pub. Co., 1908. volume II.
Thirty-fifth Infantry.—Cols., William C. Brown, Newton B. Lord, John
G. Todd; Lieut.-Cols., Stephen L.. Potter, Bradley Wins-low, John G. Todd,
David M. Evans; Majs., Newton B. Lord, John G. Todd, David M. Evans, Sidney
J. Wendell. The 35th, known as the Jefferson county regiment, was composed
of six companies from Jefferson, one from Lewis, one from Steuben, one
from Madison
county, and one from New York city, Buffalo and Elmira, and was mustered
into the U. S. service at Elmira, June 11, 1861, for two years. It left
the state on July 11, for Washington; camped on Meridian hill until July
23; moved to Arlington House and was brigaded first under Col. Porter,
then under Col. Keyes, and finally under Gen. Wadsworth in the 1st brigade,
1st division, 1st corps; was engaged for a time in construction work on
Forts Tillinghast and Craig, and moved on Sept. 27 to Fall's Church, where
it passed the winter of 1861-62. In March, 1862, camp was broken for the
Manassas movement and in April the 35th proceeded to Falmouth. During the
latter part of August, the regiment was in action at Rappahannock Station,
Sulphur Springs, Gainesville, and participated in the second battle of
Bull Run. It was present at Chantilly, but not closely engaged and then
returned to Fall's Church. At South mountain the command lost 13 in killed,
wounded and missing, and at Antietam the loss was 67. Until Oct. 15, the
regiment encamped at Sharpsburg, then moved to Brooks' station, and was
held in reserve at Fredericksburg until the day of the battle, when the
loss was 23 killed, wounded and missing. In Jan., 1863, the regiment was
assigned to the provost guard brigade, which was stationed at Falmouth,
and also performed guard duty along the Acquia Creek railroad. On May 18
the three years men were transferred to the 80th N. Y. infantry, and the
next day the regiment left Acquia Creek for Elmira, where it was mustered
out on June 5, having lost 44 members by death from wounds and 56 from
accident, imprisonment or disease, out of a total enrollment of 1,250.

Further ReadingThis is meant to be a comprehensive list. If, however, you know of a resource that is not listed below, please send an email to ng.ny.nyarng.list.historians@mail.mil with the name of the resource and where it is located. This can include photographs, letters, articles and other non-book materials. Also, if you have any materials in your possession that you would like to donate, the museum is always looking for items specific to New York's military heritage. Thank you.

Browne, Wm. C., Colonel and Ingalls, Brockway & Beebee,
printers. Volunteers wanted! An attack on Washington anticipated!! The
country to the rescue! :
A regiment for service under the flag of the United States is being formed
in Jefferson County. Now is the time to be enrolled! ... [Watertown, N.Y.]
: Ingalls, Brockway & Beebee, printers,
Reformer office, Watertown, 1861.
Description: 1 sheet ([1] p.) : ill. ; 49 x 36 cm.
Genre/Form: Broadsides.
New York (State) -- History -- Civil War, 1861-1865.
Note(s): Dated and signed: Watertown, April 20, 1861. Wm. C. Browne, col. comd'g
35th Regiment./ Illustration of eagle bearing scroll with dates "1776! 1861!" follows
first line of title./ N-YHS copy: fabric lining.
Located at the New York Historical Society.

Merrell, Samuel L. and Mary P. Lyon. Samuel L. Merrell
correspondence, 1861-1863.
Description: 0.4 linear feet (1 box)
Abstract: Correspondence, 1861-1863, mainly consisting of letters Merrell wrote
to his wife Cornelia in Watertown (N.Y.) while he was serving with the 35th
New York, a regiment raised in Elmira. There are also a few letters to his
sons, a child's drawing of warlike scenes, and a letter from Mary P. Lyon offering
him a congregation in Lyons Falls (N.Y.), as well as a letter written to him
in 1889 by a veteran of the regiment. After being mustered in Elmira, the regiment
served in the defenses of Washington (D.C.) and in various places in Virginia.
Merrell writes about camp life and family news, mentioning his anxiety about
the birth of their youngest child.
Note(s): Bio/History: Chaplain, 35th New York State Regiment.
General Info: Access: open to qualified researchers at the New-York Historical
Society./ This collection is owned by the New-York Historical Society. Permission
to publish materials must be obtained in writing from the Library Director
of the New York Historical Society, Two West 77th Street, New York, NY 10024./
Occupation:
Clergy.
Located at the New York Historical Society.

Scott, Daniel Hubbard. Daniel Hubbard Scott diary.
1862
Description: 1 v. (132 pp.); 10 cm.
Abstract: Scott's pocket diary mentions his daily activities, marches in Virginia,
weather, war news, personal expenses, his hospitalization due to a gunshot
wound to his hand, and discharge.
Located at the New York Public Library.

Shaw, Albert D.
A full report of the first re-union and banquet
of the Thirty-fifth N.Y. vols, held at Watertown, N.Y., on December 13th, 1887.
Also,
including much valuable data pertaining to the
history and members of the gallant 35th, past
and present. Watertown: Times print, and pub.
house, 1888.

Shaw, Wesley H. Letters, 1861-1865.
Description: 47 items.
Abstract: Group of letters sent to his family concerning his activities and
experiences of military services during the Civil War. They contain information
on camp life, garrison duties, convalescing from wounds in a hospital, and
action he had seen at Antietam and Fredericksburg.
Note(s): Bio/History: Civil War soldier from Otselic, New York; served in 35th
NY Infantry, Co. H, 1861-1862; reenlisted for service; 2nd NY Heavy Artillery,
Co. G, 1864-1865.
Located at the New York State Library.

Smithe, George C.
Glimpses: of places, and people, and things.
Extracts from published correspondence and
other writings, 1861-1886. By Geo. C. Smithe.
Ypsilanti, Michigan: "The Ypsilanti" press,
1887.

Smithe, George C. Smithe family papers,
1863-1954.
Description: ca. .5 linear ft.
Abstract: Papers of George C. Smithe, soldier in the 35th New York Infantry
during the Civil War; miscellanea of his daughter, Geneva Smithe, local historian;
and collected photographs.
Located at the Universtiy of Michagan.

United States. Army. New York Infantry Regiment, 35th (1861-1863). New
York Infantry, 35th Regiment, 1861-63.[New York? : s.n.,] 1888.
Located at the New York Public Library.

Unknown. Letter, 13 April 1862.
4 pages.
Letter, 13 April 1862, written from Bristoe, Virginia, by an unidentified soldier serving with the Company C, 35th New York Infantry Regiment, to his sister. In it, he speaks of his unit’s recent time spent on the march in northern Virginia, and of setting out for Richmond only to be stopped in Bristoe and told to expect transfer to Yorktown. He expresses frustration at the problems caused by disputes between Generals George McClellan (1826-1885) and Irvin McDowell (1818-1885); comments on hardships brought by rain and snow; tells of a man shot by a Union sentinel; and relates his brigade’s impressions of their new leader, General Marsena Rudolph Patrick (1811-1888). Also included is an envelope, not belonging with this particular letter, but perhaps identifying the author’s sister as Mrs. E. B. (Adelia) Erety of Port Byron, Cayuga County, New York.
Accession 42186. Located at the Library of Virginia in Richmond, Virginia.
Thank you to Ed Worman for pointing out this resource.